- For the member of AKB48 Team 8, see Yokoyama Yui (AKB48 Team 8).
Yokoyama Yui (横山由依) is a Japanese pop singer and idol managed by Ohta Production. She is a former member of AKB48 Team A, and was previously a concurrent member of NMB48.
- Name: Yokoyama Yui (横山由依)
- Nickname: Yui (ゆい), Yuihan (ゆいはん)
- Birthdate: December 8, 1992
- Birthplace: Kizugawa, Kyoto, Japan
- Blood Type: B
- Height: 158cm
- Bust: 74cm
- Waist: 60cm
- Hips: 86cm
- Bands / Groups:
AKB48 Song Participation
- AKB48 Kenkyuusei "Idol no Yoake"
- AKB48 Team B 4th Stage "Idol no Yoake"
- AKB48 Kenkyuusei "Ren'ai Kinshi Jourei"
- AKB48 Team A 5th Stage "Ren'ai Kinshi Jourei"
- AKB48 Kenkyuusei "Theater no Megami"
- AKB48 Team B 5th Stage "Theater no Megami"
- AKB48 Team A 6th Stage "Mokugekisha"
- AKB48 Team K 6th Stage "RESET"
- AKB48 Team A Waiting Stage
- AKB48 Team K 7th Stage "RESET"
- Tanaka Masahiro "Boku ga Koko ni Iru Riyuu"
- AKB48 Team A 7th Stage "M.T. ni Sasagu"
NMB48 Song Participation
- NMB48 Team N 1st Stage "Dareka no Tame ni" Revival
- Originally a 9th generation member of AKB48 Kenkyuusei, she was promoted to Team K on October 10, 2010, then transferred to Team A during the AKB48 team shuffle in 2012. She was announced for a concurrent position with NMB48 in 2012, and was placed in Team N. Her concurrency with NMB48 was cancelled on April 28, 2013, and ended on May 20, 2013. She was announced as captain of Team A after Shinoda Mariko's graduation in July 2013, and during the AKB48 Group Grand Shuffle in 2014, she was announced as captain of Team K with Kitahara Rie as sub-captain. During the AKB48 team shuffle in 2015, she was announced as captain of Team A with Nakamura Mariko as sub-captain, until Okabe Rin was announced as captain during the AKB48 team shuffle in 2017. On December 8, 2015, she became the second AKB48 Group General Manager, succeeding Takahashi Minami, until April 1, 2019 when the position was given to Mukaichi Mion. She announced her graduation from the group on September 12, 2021. Her graduation live will be held on November 27, 2021.
- Originally auditioned for SKE48's 2nd generation.
- Her audition song was "Blue Bird" by Ikimonogakari.
- Has a pet cockatiel.
- Attended Heart Voice Studio Music School for middle and high School.
- Was the vocalist in a high school band.